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The OGLE-II event sc5_2859 : a Classical Nova outburst?
- Source :
- Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, 2006, 450, pp.233-239. ⟨10.1051/0004-6361:20053971⟩, Astronomy and Astrophysics-A&A, EDP Sciences, 2006, 450, pp.233-239. ⟨10.1051/0004-6361:20053971⟩, Astronomy & astrophysics, 450(1), 233-239. EDP Sciences
- Publication Year :
- 2006
- Publisher :
- arXiv, 2006.
-
Abstract
- The OGLE-II event sc5_2859 was previously identified as the third longest microlensing event ever observed. Additional photometric observations from the EROS (Experience de Recherche d'Objets Sombres) survey and spectroscopic observations of the candidate star are used to test the microlensing hypothesis.The combined OGLE and EROS data provide a high quality coverage of the light curve. The colour of the sc5_2859 event is seen to change with time. A spectrum taken in 2003 exhibits a strong Halpha emission line. The additionnal data show that the OGLE-II sc5_2859 event is actually a classical nova outburst.<br />Comment: Accepted for publication in Astronomy and Astrophysics
- Subjects :
- stars : novae, cataclysmic variables
MACHO PROJECT
010504 meteorology & atmospheric sciences
Event (relativity)
GRAVITATIONAL LENSING EXPERIMENT
Gravitational lensing
FOS: Physical sciences
Astrophysics
Gravitational microlensing
01 natural sciences
Galaxy : stellar contents
[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO]
0103 physical sciences
Galaxy:stellar contents
Emission spectrum
010303 astronomy & astrophysics
BLACK-HOLES
0105 earth and related environmental sciences
Physics
cataclysmic variables
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph]
MICROLENSING OPTICAL DEPTH
Astrophysics (astro-ph)
Astronomy and Astrophysics
Light curve
DIFFERENCE IMAGE-ANALYSIS
CATALOG
Nova (rocket)
GALACTIC BULGE FIELDS
Space and Planetary Science
stars : novae
novæ
Subjects
Details
- ISSN :
- 00046361
- Database :
- OpenAIRE
- Journal :
- Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, 2006, 450, pp.233-239. ⟨10.1051/0004-6361:20053971⟩, Astronomy and Astrophysics-A&A, EDP Sciences, 2006, 450, pp.233-239. ⟨10.1051/0004-6361:20053971⟩, Astronomy & astrophysics, 450(1), 233-239. EDP Sciences
- Accession number :
- edsair.doi.dedup.....414940ec1de8396d003afe028cdb7ebe
- Full Text :
- https://doi.org/10.48550/arxiv.astro-ph/0601444